CN-224225714-U - Glue injection sealing structure in iron tank cover

CN224225714UCN 224225714 UCN224225714 UCN 224225714UCN-224225714-U

Abstract

The utility model relates to the technical field of fireproof paint preparation, and particularly discloses an inner glue injection sealing structure of an iron tank cover, which comprises a cover body, wherein the edge of the inner top of the cover body is fixedly connected with a fixing ring, the lower end surface of the fixing ring is provided with a glue injection groove, the inner top of the cover body is fixedly connected with a limiting ring with the diameter smaller than that of the fixing ring, the inside of the area between the glue injection groove and the fixing ring and the limiting ring is filled with a solidified sealing glue layer, the problems of easy aging and dislocation leakage of a traditional gasket are thoroughly solved through an integrated glue injection sealing structure, the accurate molding of the colloid is ensured through double-ring positioning design, the weather resistance groove mechanical locking and the silica gel material are combined, the long-acting airtight protection is realized, the arc sealing surface self-adaptively compensates the deformation of a tank opening, the tolerance to temperature fluctuation and pressure change is remarkably improved, the whole process is simplified, the pollution risk is avoided, the maintenance cost is greatly reduced, and the inner glue injection sealing structure is suitable for high sealing requirements of foods, medicines and the like.

Inventors

ZHANG AIYUN
LI CHUANHUI
LI CHUANBAO

Assignees

连云港神州制罐有限公司

Dates

Publication Date: 20260512
Application Date: 20250618

Claims (6)

1. The utility model provides an in-can lid injecting glue seal structure, includes lid (1), its characterized in that, inboard top edge fixedly connected with solid fixed ring (2) of lid (1), injecting glue slot (3) have been seted up to the lower terminal surface of solid fixed ring (2), inboard top fixedly connected with diameter of lid (1) is less than spacing ring (4) of solid fixed ring (2), all pack in the region inside between injecting glue slot (3) and solid fixed ring (2) and spacing ring (4) and have solidification seal glue film (5), the lower terminal surface of solidification seal glue film (5) forms outwards convex sealing contact face (6) downwards.
2. The glue injection sealing structure in the iron tank cover is characterized in that the section of the glue injection groove (3) is of a trapezoid structure.
3. The structure of claim 1, wherein the cured sealant layer (5) is made of food-grade silica gel.
4. The glue injection sealing structure in the iron tank cover according to claim 1, wherein the thickness of the limiting ring (4) is larger than that of the fixing ring (2).
5. The structure of claim 1, wherein the cross section of the sealing contact surface (6) is arc-shaped.
6. The glue injection sealing structure in the iron tank cover is characterized in that threads are arranged on the inner side wall of the cover body (1).

Description

Glue injection sealing structure in iron tank cover Technical Field The utility model relates to the technical field of food packaging, and particularly discloses an inner glue injection sealing structure of an iron can cover. Background The food package (foodpackaging) is an integral part of the food product. One of the major projects in the food industry process. The food is protected, the food is prevented from being damaged by biological, chemical and physical external factors in the circulation process from a factory to a consumer, the food can also have the function of keeping the food stable quality, the food is convenient to eat, the appearance of the food is presented at first, the consumed image is attracted, and the food has the value beyond the material cost. Thus, the food packaging process is also an integral part of the food manufacturing system engineering. The versatility of the food packaging process, however, allows for a relatively independent self-system. The existing food packaging iron cans are mostly sealed by embedding rubber or silica gel gaskets inside the can covers. The structure relies on gasket elastic deformation and jar mouth pressfitting, and temperature variation leads to gasket ageing or deformation easily, and pressure fluctuation causes the screw force to loosen, and mechanical dislocation makes gasket and jar mouth contact inhomogeneous, and this kind of sealing means is short in service life, the reliability is low, need frequently change the gasket, increase cost. Disclosure of utility model The utility model provides an inner glue injection sealing structure of an iron tank cover, which thoroughly solves the problem that the traditional gasket is easy to age and misplace and leak through an integrated glue injection sealing structure. The utility model discloses an inner glue injection sealing structure of an iron tank cover, which comprises a cover body, wherein the edge of the top of the inner side of the cover body is fixedly connected with a fixing ring, the lower end surface of the fixing ring is provided with a glue injection groove, the top of the inner side of the cover body is fixedly connected with a limiting ring with the diameter smaller than that of the fixing ring, the inside of the glue injection groove and the area between the fixing ring and the limiting ring are filled with a solidified sealing glue layer, and the lower end surface of the solidified sealing glue layer downwards forms an outwards protruding sealing contact surface. As the preferable internal glue injection sealing structure of the iron tank cover, the cross section of the glue injection groove is in a trapezoid structure. As the preferable internal glue injection sealing structure of the iron tank cover, the solidified sealing glue layer is made of food-grade silica gel. As the inner glue injection sealing structure of the iron tank cover, the thickness of the limiting ring is preferably larger than that of the fixing ring. As the preferable internal glue injection sealing structure of the iron tank cover, the cross section of the sealing contact surface is of an arc-shaped structure. As the inner glue injection sealing structure of the iron tank cover, the inner side wall of the cover body is preferably provided with threads. The beneficial effects of the utility model are as follows: The integrated type glue injection sealing structure thoroughly solves the problems of easy aging and dislocation leakage of the traditional gasket, ensures accurate molding of colloid through double-ring positioning design, combines the mechanical locking of the trapezoid groove and the weather resistance of the silica gel material, realizes long-acting airtight protection, adaptively compensates the deformation of a tank opening of an arc sealing surface, remarkably improves the tolerance to temperature fluctuation and pressure change, simplifies the assembly process of the gasket through the whole process, avoids pollution risks, greatly reduces maintenance cost, and is suitable for high-sealing requirement scenes such as foods, medicines and the like. Drawings In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. Like elements or portions are generally identified by like reference numerals throughout the several figures. In the drawings, elements or portions thereof are not necessarily drawn to scale. FIG. 1 is a front elevational view in cross-section of the entire construction of the present utility model; FIG. 2 is a bottom view of the present utility model with the lid cured sealant layer unfilled; Fig. 3 is a bottom view of the filling state of the cured sealant layer of the cover body of the utility model. In the figure, the sealing device comprises a mark 1, a cover body, a fixing ring 2, a glue injection groove 3,